@The Nephilim - the video should play - it's just a regular YT video. You might try going to
http://www.youtube.com/f15sim and see if that helps at all.
@Reschke - The vacuum is actually about 18' away and on the other side of a shelving partition. I still have a few things to do to completely silence it.
As long as you don't pinch the diameter of the feed line, you won't reduce the vacuum over a long distance. It just takes a bit longer to pull the mirror down because it would have to remove all the air from the feed line before it could start on the mirror plenum volume.
Thin film mirrors are really the only way to go with this - the solid form was a blind alley for me.
tnx.
g.